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In this video I show how to add a HES (hall-effect sensor) to Pinecil V2. It is a straight-forward procedure, for which you only need a soldering iron and some flux (besides the sensor, of course). SI7210-B-00-IV at DigiKey: www.digikey.com/en/products/detail/silicon-labs/SI7210-B-00-IV/7323047 SI7210-B-00-IV at Mouser: www.mouser.com/ProductDetail/Silicon-Labs/SI7210-B-00-IV?qs=gt1LBUVyoHm9MLE...

Here I'm comparing actual real-world usability of different power banks. As it turns out, more expensive doesn't always mean better. *This video is not sponsored* Chargers teardown: th-cam.com/video/xR-EizT7Am0/w-d-xo.html Affiliate links support this channel: VEEKTOMX 10000mAh US: amzn.to/3PTB5Mi CA: amzn.to/3d0K3c4 INIU 10000mAh US: amzn.to/3bvHC0O CA: amzn.to/3zVcUrp ANKER 20000mAh US: amzn....

In this video I'll guide you through making a device that can send you notifications about elevated levels of radiation to your cellphone without any subscription fees. Links: Demon core: en.wikipedia.org/wiki/Demon_core balena cloud: balena.io balena etcher: balena.io/etcher Repo (docker-compose and updated app.py files): github.com/ungineer/radiation-notifier Telegram microservice: github.com...

In this video I'm building a carbon dioxide monitor using a MH-Z19 CO2 sensor. Although it's not as precise as $500 devices, I compared it with a hand-held Temtop monitor, it was within about 5%. The paper mentioned: www.mdpi.com/1996-1073/13/22/6099 ESP32 sensor code: github.com/ungineer/multisensor InfluxDB: github.com/ungineer/localinflux Installing docker on Pi: th-cam.com/video/zAKHS6j5Jso...

I like having only one type of cable to power all my devices, so I'm slowly replacing most of micro-USBs with type C. The same procedure can be used on Raspberry Pi Zero and Raspberry Pi Zero 2 w. Parts needed (affiliate): USB connector: ali: s.click.aliexpress.com/e/_AObCfH amz US: amzn.to/3vjzojc Tools used (affiliate): Atten Rework Station: ali: s.click.aliexpress.com/e/_DDj... amz US: amzn....

I have ESP8266 programmer that uses USB-C and a ESP32 programmer that uses microusb. Instead of using two different cables to accomplish the same task, I decided to convert the microusb devices to USB-C. How to prepare the USB type C connector: th-cam.com/video/i-LdCOHUyhU/w-d-xo.html Affiliate links: Parts needed: USB-C connector: s.click.aliexpress.com/e/_9I7hUh ESP32 Programmer: s.click.alie...

After some googling and some testing I finally figured out that the lines CC1 and CC2 are shorted on these breakout boards. Severing the connection between them and adding two pull-down resistors makes it a usable 5V connector. You will also probably need 1206 size resistors for the reverse side: s.click.aliexpress.com/e/_AAAqGp

I can't stand that these scammers take advantage of people who may be down on their luck. And since my internet service provider/email provider can't do anything about these scammers, I decided to do it myself. This simple script is costing the scammers some money every time it runs. I'm using VPN, so it should be difficult enough for them to trace these calls.

#10 UNreviews: Flir One Pro vs Seek CompactPRO thermal camera review and comparison.

#9 Making USB-C deliver 5V

#8 DIY Fume extractor using a Tesla HEPA filter

#7 opolar duster teardown microusb replacement

#6 How to program ESP8266 board using a Raspberry Pi, Arduino or a USB adaptor.

#5 UNreviews: Flsun QQ-S Overview (not a full review)

#4 Cheap smart garage door opener with door sensor under $10 ($5 - $7): esp8266/ESP-01S.

#3 UNreviews: Uni-T UT120A pocket multimeter review and teardown

#2 UNBasics: How to measure current without an ammeter.

#1 Wowstick 1F vs Amazon or Aliexpress generic Chinese screwdriver review comparison